Corner-fastening for screen-frames.



' B. 0. ROCKWELL.

CORNER FASTENING FOR. SCREEN FRAMES.

AAAAAAAAAAAA ILED DEC. 13, 1911.

1,089,499, Patented Mar. 10, 1914.

I 9 J 74 $55 b nor COLUMBIA PLANOGRMH coqwAs IIIIIIIIIII c.

BYRD G. ROCKWELL, OF MALVERN, ARKANSAS.

GORNER-FASTENIN G FOR SCREEN-FRAMES.

Specification of Letters Patent.

Patented Mar. 10, 1914:.

Application filed December 13, 1911. Serial No. 665,512.

To all whom it may concern Be it known that I, BYRD C. ROCKWELL,

a citizen of the United States, residing at Malvern, in the county of Hot Spring and State of Arkansas, have invented a new and useful Corner-Fastening for Screen- Frames, of which the following is a specification.

This invention relates to an improvement in corner fastenin'gg for frames.

The primary object of said invention is to provide a device for securing the rails of screen frames together.

A further object of the invention is to so construct the same that it will hold the rails together without any portion of the same extending beyond the edge portions of the rails.

In the drawings, Figure 1 is a front elevation showing the device in position. Fig. 2 is a section on the line 2-2 of Fig. 1. Fig. 3 is a section on the line 33 of Fig. 1. Fig. 4 is a View of the blank from which the device is formed. Fig. 5 is a view of a blank showing a slightly modified form. Fig. 6 is a perspective view of the blank, the tongues and edges being off set. Fig. 7 is a sectional view showing the device fastened to a slightly modified form of rail. Fig. 8 is a view of the blank of a further modification. Fig. 9 is a perspective view of the form shown in section in Fig. 7.

In the drawings 10 designates the longitudinal rail of the screen frame and 11 the vertical rail or stile. As before stated, the object of the invention is to connect the rails in such manner that the device will not project inwardly toward the screen or outwardly where the same would mar or injure the window frame. The vertical rail or stile 11 is formed with grooves 14: on each of its faces and the longitudinal rail 10 is formed with a dove-tailed tongue or extension 15.

The securing device is formed from a single piece of material either sheet or cast metal the body portion of the same being of a width equal to the width of the rail 11 and of a length slightly less than the width of said rail. The plate is formed with flanges 17 which are disposed at an angle to embrace the dove-tailed extension 15 although the same could be disposed at right angles and secured to the rail. The plate adjacent each of its ends has portions removed to form tongues 18, two tongues being formed at each end to embrace the sides of the vertically disposed member, said tongues resting in grooves 14, securing devices passing through the tongues and the flanges to hold the same in position.

In the form shown in Fig. 5 but three tongues are provided, said tongues being disposed in staggered relation providing a somewhat stronger device for heavier work, the tongues being longer and extending for a greater distance along the vertical rail.

The many advantages of a device of this character will be clearly apparent as it will be noted that the same forms an effective corner securing device which may be cheaply constructed from a single piece of material. It will also be noted that in the use of this device right and left hand members are dispensed with the same being adapted for use at any of the corners of the'frame.

In the modified form shown in Fig. 7 the rail is provided with the concaved grooves 20 which receive the flanges 17 the peculiar configuration of the groove assuring a snug joint.

In the form shown in Fig. 8 the two tongues 21 are pressed outward from the body said tongues, being oppositely disposed, the construction being such as may be readily stamped. This structure provides an easily manufactured member by reason of the disposition of the tongues.

In the form shown in Fig. 9, the body 24 of the plate is continued beyond the flanges, this form being employed with wide rails, the plate contacting with the entire end of the rail. In this form the flanges 22 are disposed as shown in Fig. 7, to embrace the groove in the stile, the peculiar disposition of the flanges being such that the stock is not materially weakened.

Attention is called to the fact that, in the structure illustrated that portion of the plate between the flanges merely constitutes a connecting web from which almost any percent age of metal can be removed without weakening the fastener. Thus the tongues can be produced by striking them out of the middle portion of the blank without weakening the fastener, thereby enabling the complete de vice to be formed of considerably less metal than has heretofore been possible. Coir sequently the fastener can be more cheaply manufactured than similar devices heretofore produced without, however, reducing its efficiency.

What is claimed is constituting the sole means for holding to- In a device of the class described, a plate gether those parts of the plate between the having parallel side flanges bent to embrace openings from which the tongues Were reand engage the sides of a rail, portions of moved. 15 the plate between the flanges being out In testimony that I claim the foregoing along lines perpendicular to the flanges and as my own, I have hereto aflixed my signaa outstruck to form parallel tongues for enture in the presence of two Witnesses.

gaging opposed faces of a stile, said BYRD C. ROCKWELL. tongue being perpendicular to the plate Witnesses:

and extending from the angles produced H. S. GINGRIoH,

by the plate and flanges, and said flanges C. A. DAVIS.

Copies of thin patent may be obtained for five cents each, by addressing the Commissioner of Patent. Washington, I). G." 

